There are certain containers that should not be used as planters. One of the things about planter gardening is that you can put a plant in just about anything and call it a planter. However here are a few exceptions:
- Using planters with a small opening or neck limits air circulation and makes watering difficult.
- A shallow planter will dry out very quickly.
- Never use use a planter without drainage holes.
- Never use a container that previously held chemicals or caustic materials for a planter.
- Never use a biodegradable container as a planter. Things could get interesting half way through the season.